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Polymorphs of 1-cyclopropyl-7-([s,s])-2,8-diazadicyclo[4.3.0]non-8-yl)-6-fluoro-1,4-dihydro -8-methoxy-4-oxo-3-quinoline carboxylic acid hydrochloride and methods for the preparation thereof


Title: Polymorphs of 1-cyclopropyl-7-([s,s])-2,8-diazadicyclo[4.3.0]non-8-yl)-6-fluoro-1,4-dihydro -8-methoxy-4-oxo-3-quinoline carboxylic acid hydrochloride and methods for the preparation thereof.
Abstract: f) isolating the product (form B). e) reslurrying the solid at reflux in a solvent selected from alcohols and polyols or mixtures thereof, in which the resulting mixture has an overall water content of between 2.5% and 0.01% by weight, d) isolating the product which is separated, (form A) and, additionally, c) cooling, b) heating the mixture under reflux, a) suspending 1-cyclopropyl-7-([S,S])-2,8-diazabicyclo-[4.3.0]non-8-yl)-6-fluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinoline carboxylic acid hydrochloride in a solvent selected from an alcohol and a polyalcohol, the preparation thereof, and their pharmaceutical compositions are described. These crystalline forms, which are characterized by greater stability and ease of preparation and of formulation, can be produced by industrially applicable methods which comprise the steps of: Two novel crystalline forms, designated form A and form B of the antibacterial agent 1-cyclopropyl-7-([S,S])-2,8-diazabicyclo[4.3.0]non-8-yl)-6-fluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinoline carboxylic acid hydrochloride of formula, ... Browse recent Chemi S.p.a. patents
USPTO Applicaton #: #20120277263
Inventors: Stefano Turchetta, Pietro Massardo, Valentina Aromatario



The Patent Description & Claims data below is from USPTO Patent Application 20120277263, Polymorphs of 1-cyclopropyl-7-([s,s])-2,8-diazadicyclo[4.3.0]non-8-yl)-6-fluoro-1,4-dihydro -8-methoxy-4-oxo-3-quinoline carboxylic acid hydrochloride and methods for the preparation thereof.




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stats Patent Info
Application #
US 20120277263 A1
Publish Date
11/01/2012
Document #
13538249
File Date
06/29/2012
USPTO Class
514300
Other USPTO Classes
546113
International Class
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Drawings
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Drug, Bio-affecting And Body Treating Compositions   Designated Organic Active Ingredient Containing (doai)   Heterocyclic Carbon Compounds Containing A Hetero Ring Having Chalcogen (i.e., O,s,se Or Te) Or Nitrogen As The Only Ring Hetero Atoms Doai   Hetero Ring Is Six-membered Consisting Of One Nitrogen And Five Carbon Atoms   Polycyclo Ring System Having The Six-membered Hetero Ring As One Of The Cyclos   Bicyclo Ring System Having The Six-membered Hetero Ring As One Of The Cyclos   Plural Hetero Atoms In The Bicyclo Ring System  

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